US2017267659A1PendingUtilityA1

Method for producing 2-pyridone compound

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Assignee: NISSAN CHEMICAL IND LTDPriority: May 13, 2014Filed: May 11, 2015Published: Sep 21, 2017
Est. expiryMay 13, 2034(~7.8 yrs left)· nominal 20-yr term from priority
Inventors:Hironobu YoshinoYasuhiro UmedaJun TakeokaAkihiro NagayaYudai SugawaraMadoka Yoshino
C07D 401/06C07D 213/64C07D 213/89C07D 213/50C07B 57/00C07B 53/00C07D 213/84
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Claims

Abstract

To provide a method for producing a compound represented by the formula (1) which is a 2-pyridone compound useful as a pharmaceutical or an intermediate for a pharmaceutical, etc. at a high yield. A method for producing a 2-pyridone compound represented by the formula (1), which comprises reacting a 6-benzoyl-2-pyridone compound represented by the formula (3) with a sulfone compound represented by the formula (4):

Claims

exact text as granted — not AI-modified
1 . A method for producing a 2-pyridone compound represented by the formula (1), which comprises reacting a 6-benzoyl-2-pyridone compound represented by the formula (3) with a sulfone compound represented by the formula (4) wherein formulas (1), (3) and (4) are described below: 
       
         
           
           
               
               
           
         
       
     
     
         2 . The production method according to  claim 1 , wherein the reaction is carried out in the presence of a urea derivative. 
     
     
         3 . The production method according to  claim 2 , wherein the urea derivative is 1,3-dimethyl-2-imidazolidinone. 
     
     
         4 . A compound represented by the formula (1): 
       
         
           
           
               
               
           
         
       
     
     
         5 . A compound represented by the formula (3): 
       
         
           
           
               
               
           
         
       
     
     
         6 .- 11 . (canceled)

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